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Jyutping m4 gau3 fan3
Pinyin wú gòu fèn

Definitions (Wiktionary)
  1. adj, Cantonese
    not having enough sleep; did not sleep enough
    (syn.) 無夠眠, 无够眠

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Jyutping m4 gau3 fan3
Pinyin wú gòu shuì

Definitions (粵典–words.hk)
  1. 形容詞
    瞓​得​太​少​冇​精神
    not having enough sleep
    • 你唔夠瞓唔好揸車喇,搭的士啦。
      你唔够瞓唔好揸车喇,搭的士啦。
      nei5 m4 gau3 fan3 m4 hou2 zaa1 ce1 laa3, daap3 dik1 si2 laa1.
      Don't drive if you haven't had enough sleep. Go take a taxi.
Definitions (Kaifangcidian)
  1. 睡眠不足
  2. 沒睡好 – 没睡好
  3. 睡不夠 – 睡不够

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Jyutping m4 gau3 fan3
Pinyin n2 gòu fèn

Definitions (CC-CANTO)
  1. not enough sleep
Examples (Tatoeba—Cantonese-English)
  1. Cantonese
    佢攰得济,又唔够瞓,卒之咪搞到病咗啰。
    佢攰得濟,又唔夠瞓,卒之咪搞到病咗囉。
    keoi5 攰 dak1 zai3 , jau6 m4 gau3 fan3 , zeot1 zi1 mi1 gaau2 dou3 beng6 zo2 lo1 。
    • What with fatigue and lack of sleep, he has fallen ill at last.
Examples (粵典–words.hk)
  1. Cantonese
    佢㖊晚唔够瞓,搞到今日失晒魂。
    佢噚晚唔夠瞓,搞到今日失晒魂。
    keoi5 cam4 maan5 m4 gau3 fan3, gaau2 dou3 gam1 jat6 sat1 saai3 wan4.
    • He did not sleep much last night, so he is not being himself today.
  2. Cantonese
    你唔够瞓唔好揸车喇,搭的士啦。
    你唔夠瞓唔好揸車喇,搭的士啦。
    nei5 m4 gau3 fan3 m4 hou2 zaa1 ce1 laa3, daap3 dik1 si2 laa1.
    • Don't drive if you haven't had enough sleep. Go take a taxi.
  3. Cantonese
    唔够瞓梗系冇精神啦。
    唔夠瞓梗係冇精神啦。
    m4 gau3 fan3 gang2 hai6 mou5 zing1 san4 laa1.
    • (You) will certainly feel listless for not having enough sleep.
  4. Cantonese
    早起唔够瞓,搞到个个放蚊。
    早起唔夠瞓,搞到個個放蚊。
    • People get up early and do not have enough sleep, which makes them yawning a lot.